Gather enough leaves, grass clippings and pine needles to create a large compost pile. Mix all of the organic matter together thoroughly. Compost will add aeration and retail moisture, in addition to lowering the pH.
Keep the compost pile moist, as if it were a sponge. Turn the pile frequently with a pitchfork. Continue to turn and wet the compost for up to four weeks. This creates a cold compost, and will decompose slowly. Compost piles with an abundance of leaves may take two months to be ready for mixing with the soil.
Add partially decomposed compost to soil three months to one year before planting. Mix the compost into the soil for the top 6 inches. Add it into the soil up to 2 feet around the plant and into the drip line. Water the soil mix well, and keep watering it if regular rainfall is low. Continually test the pH of the soil and add compost as needed to reduce the pH.